Excavator



FIG. 1 is a perspective view of an excavator showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawings are for the purpose of illustrating portions of the excavator that form no part of the claimed design. 

CLAIM The ornamental design for an excavator, as shown and described. 